Appreciate the removal of the 1 unit reward! There are still other rewards that should go, though. In SAV very few players need a couple thousand medals or 5 blueprints, I definitely don't think they deserve to be "rare" rewards, so I'd definitely remove or shift them down the line. Replacing "2 blueprints" in common with the "5 blueprint" rare reward would be more in line with what players need. Supplies and Coins have no place as a reward either, SAV players make millions or tens of millions of coins and supplies each day, the occational 500k coins or supplies from the flying island really mean nothing, and makes the other rewards less common. Finally, I don't quite get why previous era goods would be worth less than the current age goods, I'd definitely bump the 100 random previous era goods to 200 to be in line with the current era goods.
TL;DR
Remove Uncommon Blueprints, Coins & Supplies
Remove Rare Medals, Move 5 Blueprints to Common
Update 100 previous era goods to 200 goods
I still don't think that's enough to make it good considering the leveling costs, but it would definitely make it better